} elseif (isset($_GET['page']) && $_GET['page'] == 'edit_cd_dvd') {
$cd_id = $_POST['lib_cd_id'];
$The_CD = $engine->get_CDs($cd_id);
include 'pages/Edit_CD_DVD_Fields.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'edit_magazine') {
$mag_id = $_POST['lib_meg_id'];
$The_Mag = $engine->get_magazine($mag_id);
include 'pages/Edit_Magazine_Fields.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'library_magazine') {
if (isset($_POST['move_magazine'])) {
$engine->move_magazine($_POST['lib_meg_id']);
}
include 'pages/Library_Magazine_Items.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'library_books') {
if (isset($_POST['move_book'])) {
$engine->move_book($_POST['lib_book_id']);
}
include 'pages/Library_Book_Items.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'library_cds') {
if (isset($_POST['move_cd'])) {
$engine->move_CDs($_POST['lib_cd_id']);
}
include 'pages/Library_CD_DVD_Items.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'successful_borrow') {
include 'pages/Successfull_Borrow.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'library_magazine') {
if (isset($_POST['move_book'])) {
$engine->move_book($_POST['lib_book_id']);
}
include 'pages/Library_Magazine_Items.php';
} elseif (isset($_GET['page']) && $_GET['page'] == 'library_cd_dvd') {
